苯胺

Precursor pyridyl anilines 2 were prepared by Suzuki coupling. 前兆2吡啶備鈴木苯胺偶合.

Fourteen substituted phenyl isocyanates were synthesized by reacting diphosgene with corresponding substituted anilines with the yields of 37. 以雙光氣和取代苯胺為原料

From readily available starting materials,isopropanol,epichlorohydrin and piperidine,six bepridil derivatives were synthesized via chlorination with SOCl_2 and condensation with substituted anilines. 目的合成芐普地爾衍生物。方法以異丙醇、環(huán)氧氯丙烷、哌啶為起始原料,反應(yīng)中間體經(jīng)二氯亞砜氯化后,與取代苯胺等縮合得到目標(biāo)化合物。

The purpose of polymethylene polyphenyl polyamines purification system is to get rid of anilin and water.The stripping tower and drying tower are two main separation units in the system. 多胺精制系統(tǒng)的任務(wù)是脫除粗多胺中的苯胺和水,針對(duì)現(xiàn)有工藝存在的精制效果差、消耗高等問(wèn)題,分別對(duì)影響汽提塔和干燥塔的因素進(jìn)行了模擬分析,提出了相應(yīng)的改進(jìn)措施。

ZHANG Wenwei,XIN Changbo,LI Xiaohui,et al.Direct determination of phenol and anilin in environmental water by fluorescenc spectrophotometry[J].Chinese Journal of Analysis Laboratory,2000,19(5):37-39. [7]張文偉